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Complementary, especially in relation to sexually deviant practices. Also, to relate well to another person.

(Sometimes shortened to just "kinked" or "kinks" with the same usage.)

This notion comes from the definition of kink in the 1670s which was a nautical term meaning a twist in a rope. The idea of kinking together is similar to a knot falling easily into place.
You're a sub and I'm a dom, so that kinks together.
by Sabastion Lightfoot May 26, 2010